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Power module
Zeners
Power clampers
PFC Circuit Control IC MH Series
Switching power supply control IC MS series
DC-DC Converter Power IC MD Series

Switching power supply control IC MS series

Overview

It is a control IC with a function that can drastically reduce input power during standby as compared with conventional ICs.
It has many functions and can select the main switching element freely, so it can handle a wide range of power capacity.

Product name	Standard specification code	Circuit type	Vin applied voltage	Vcc ［V］	Standby function	Number of jumps	Package
MS1003SH	-5072	Quasi-Resonant	95 ～ 450	11 ～ 24	S-Stby Mode	1time	SOP8_7J
MS1004SH	-5072	Quasi-Resonant	95 ～ 450	11 ～ 24	S-Stby Mode	2times	SOP8_7J

Quasi-resonant power supply control IC supporting auto burst MS1003SH / MS1004SH

High efficiency and low noise are realized by quasi-resonant operation
Equipped with an auto standby function that does not require additional parts
Equipped with super standby function which can improve efficiency of futher light load areas
Equipped with automatic jump function to suppress rise of oscillation frequency
Built-in input voltage dependent correction circuit for overcurrent protection detection
Built-in start-up circuit not requiring start-up resistance to reduce loss in start-up circuit
Built-in soft drive circuit advantageous to noise
Overvoltage protection timer latch stops latching in 2 seconds
SOP8/7JPackage

The MS series is a high-performance IC that can drastically reduce standby power as compared with conventional Ics and incorporate various functions, making it easier to use and design power supplies with fewer external components.
By changing the main switch element, it is possible to handle a wide range of power capacity.

Main applications

Various standard power supplies
DVD/BD recorder & player
Digital STB power supply
Power supply for document equipment such as LBP
Energy saving flat TV power supply

Various Protection functions

Overcurrent protection
Overvoltage protection (latch stop)
Overload protection (timer latch stop)
Overheat protection (latch stop)
Soft start

Basic circuit configuration

Standby power characteristics

200V system imput 12V/30W power supply No load (no x capacitor dischange resistance)

Auto burst Pin=56mW
Super standby Pin=35mW

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